body{
    margin: 0;
    padding: 0;
}
/*头部样式*/
header{
    width: 100%;
    height: 60px;
    background-color: #515457;
}
.title{
    width: 600px;
    height: 60px;
    line-height: 60px;
    float: left;
    margin-left: 30px;
    font-size: 25px;
    letter-spacing: 2px;
    font-weight: 700;
    color: #fff;
}
.item{
    width: 100px;
    height: 60px;
    line-height: 60px;
    text-align: center;
    font-size: 18px;
    color: #fff;
    font-weight: 500;
}
.line{
    height: 60px;
    line-height: 60px;
    font-size: 20px;
    color: #fff;
}
.guide{
    width: 500px;
    height: 60px;
    float: left;
    line-height: 60px;
    display: flex;
    justify-content: space-around;
}
.button{
    width: 200px;
    height: 60px;
    line-height: 60px;
    float: right;
    text-align: right;
    margin-right: 30px;
}
.button button{
    padding: 10px 17px;
    border-radius: 10px;
    border: 1px solid #F56C6C;
    color: #F56C6C;
    background-color: #fef0f0;
    font-size: medium;
}
.button button:hover{
    background-color: #F56C6C;
    color: #fff;
}
.button a{
    text-decoration: none;
    color: #fff;
    font-size: small;
}
.button a:hover{
    color: #F56C6C;
    text-decoration: underline;
}

/*主页内容区*/
.content{
    width: 100%;
    height: 650px;
    background-image: url("../images/back.jpg");
    background-size: 100% 100%;
    background-repeat: no-repeat;
    display: flex;
    justify-content: space-around;
}
.box{
    width: 300px;
    height: 300px;
    line-height: 300px;
    text-align: center;
    font-size: 35px;
    color: #fff;
    margin-top: 150px;
    border-radius: 50%;
    background-color: #515457;
    opacity: 0.5;
}
.box:hover{
    opacity: 1;
}
.manager{
    width: 80px;
    height: 70px;
    padding: 0px;
    line-height: 70px;
    text-align: center;
    position: fixed;
    top:570px;
    left: 1400px;
    border-radius: 10px;
    background-color: #515457;
}